◇Engineering Advisor◇Technical Writer◇Author ◇
6 Dec 2017 6:00 (GMT+1)

Ballast Water Systems

An ancient technique that stabilize our ships

Before the modern age, wooden sail ships normally carried very high-density type of ballast, such as concrete, steel, lead or stones, stones were very cheap and easily replaceable. Disadvantages to using high-density ballast, firstly is the increased mass of the boat; a heavier boat sits lower in the water, increasing drag when it moves, and is generally less responsive to steering. Secondly, since the ballast needs to be as low as possible, it is often placed into a centerboard, but that m...
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